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![Pentair PacFab TR140 Air Relief Tube [After 11/99] (150042) insiders Choosing the correct heater model](https://cdn.shopify.com/s/files/1/1751/9347/files/31-110-1440_XL.jpg?v=1778107568)
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Choosing the correct heater model helps preserve both compatibility and service simplicity
It helps keep compatible grid elements properly spaced and aligned within the filter body
When the cartridge media becomes loaded or less effective
more dependable spa operation
Pentair PacFab TR140 Air Relief Tube [After 11/99] (150042) insiders Choosing the correct heater modelMade for precise equipment maintenance, this air relief tube is useful when keeping older Pentair PacFab systems operating cleanly and reliably. Use it when servicing TR series sand filters; the right component helps maintain alignment, sealing pressure, and overall equipment performance after the repair is complete. The 150042 component supports sand filter service where internal positioning, air relief, or media flow can affect filtration quality.
